WGU C165 Integrated Physical Sciences
| Questions and Answers Graded A+
Latest 2024
Which physics topic would be the MOST important in chemistry? -
Correct Answer - how atoms bond to each other because of electric attraction of oppositely charged electrons and nuclei
The science BEST for studying photosynthetic bacteria is - Correct Answer - life science
A space probe is an unmanned spacecraft. Which of these terms BEST describes a research project in which a space probe is sent
to collect soil samples on planet Mars and then report the data back to Earth? - Correct Answer - a field study
Which of these terms BEST describes a research project in which
a big telescope is placed on a high mountain in Arizona to study the brightness stability of the sun? - Correct Answer - an observational study Which of these fields depends the MOST on observational studies? - Correct Answer - The kinetic theory of gases is based on the assumption that the molecules that form the gas are in random motion and bounce off the walls of their container and off each other as if they were billiard balls. The forces between real molecules are more complicated. This is an example of - Correct Answer - using a model
Why can't astronomers carry out a scientific research study to determine which visible star, other than our sun, is the nicest? - Correct Answer - There is no way to prove any answer wrong.
In 1811, physicist Amedo Avogadro proposed that the same volume of two different gases at the same temperature and pressure contain the same number of molecules. His proposal received little attention until the 1850s, when chemist Stanislao Cannizzaro, in particular, argued that Avogadro's idea agreed with
all the physical and chemical laws discovered up to that time. Today, Avogadro's statement about gases is sometimes referred to as "Avogadro's hypothesis" or "Avogadro's law." Which statement describes when each of those two terms would be MOST accurately applied? - Correct Answer - It is most accurately described as a hypothesis starting in 1811, but a law after the 1850's.
"When water freezes the water molecules join weakly in a specific
way" is mainly a statement about: - Correct Answer - chemistry
"Being less dense than liquid water makes the ice float." is mainly a statement about: - Correct Answer - physics
"The river freezes on its surface first" is mainly a statement about:
- Correct Answer - Earth Science
An experiment in which you deliberately change only one variable, and observe how a second variable changes as a result,
while you hold all other variables that you control constant, is a: - Correct Answer - controlled experiment
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